Just traded my 01 7.3 in for a 2008 6.4 King Ranch and am a little dissappointed with the fuel consumption. I knew it was not going to be as good but wow only 12mpg (hand calculated). I would like some input as to a tuner that can help with this without breaking my wallet or leaving a track in the computer as It is still under warranty.

I'm going through the same thing as you so I'll tell you what I've found so far. My 08 is great and I love it, but 11 mpg sucks. I've talked to a lot of people, in person, forums, etc... The best I can tell you is that any tuner that deletes the Dpf can void the warranty. Some of the other stuff like banks may not. Some guys have tuners and understanding dealers so they still get warranty work done. I don't care about the warranty so much at this point. My truck has 30000 miles on it, I only have a little over a year left on the warranty and I want the mileage. In the 2.5 weeks I've had it heres what I've decided. Any upgrade without the delete seems pointless. I found a guy in Pennsylvania that will install a php system for a little over 1k. I'm gonna go with him. I talked to several companies and liked him a lot. Name of the place is east coast diesel. H&S wasn't my second option and a lot of guys like Spartan too. It seems that all the deletes do the same thing you just need to find someone by you that you feel good about. Should have mine done within the next month or so.

Allot of the DPF friendly tunes only add a few MPGs at most. Some may help more then others but at a cost to the DPF. For instance, Banks can give you between 1-3 mpg increase and is the cleanest DPF tune out there. But if your looking for even greater numbers, 5-6+ take a look at one of the DPF off tunes , H&S, Spartan, SCT, etc..

Mind you, these increases are for unloaded trucks, when your towing you will again have crappy mileage.

Banks get good reviews but has minimal results. Also, remember, any dpf tuned truck will make it regenerate more often. Banks is the probably the best of these units. I think it's impossible to have the Dpf system and get the most efficiency. It's either live with it or change it. Also, php will custom tune. For example, if you call and explain exactly what your looking for, they will work with you til your happy. I have not heard a negative thing about this company, and that's hard to do.

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